CN1611519A

CN1611519A - Water-based phenylpropyl emulsion formula and its preparing process

Info

Publication number: CN1611519A
Application number: CN 200310106881
Authority: CN
Inventors: 程希利
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-30
Filing date: 2003-10-30
Publication date: 2005-05-04

Abstract

The invention relates to a kind of watercraft benzene propyl cream. The watercraft benzene propyl cream in this invention is same as watercraft benzene propyl cream material in that making internal-external wall water-resistant paint after dosing fillers of all kinds, and is different to the material in that it can use watercraft benzene propyl cream as bonding agent of special cement product, in order to produce that such as a lot of copying Europeanism Roman column, modeling window-form member, large-scale landscape sculpture, and so on. The watercraft benzene propyl cream of the invention has greater intensity and operability than GRC cement manufactured with material such as polyvinyl alcohol; especially the guide-form member manufactured with mould can improve intensity cement considerably, and also has great superiority in aspect of repairing concrete.

Description

A kind of prescription of water-based benzene emulsion and manufacture craft

Technical field:

The invention belongs to the polymer emulsion goods, relate to a kind of prescription and manufacture craft of water-based benzene emulsion.

Background technology:

Polymer emulsion goods in the past mostly are used for building water-proof paint, as polyacrylic acid emulsion, vinyl acetate between to for plastic-ethylene copolymer emulsion, pure-acrylic emulsion, styrene-butadiene emulsion, polychloroprene latex etc., these emulsions mostly are the surface treatments that is used for waterproof paint or various materials such as indoor, outdoor.What the water-based benzene emulsion among the present invention was identical with above material is to make interior exterior wall waterproofing coating after dosing various fillers, different is can the use benzene emulsion as the wedding agent of special cement goods, make such as various imitative European FRP Columns with this, molding window formula member, large-scale landscape is with sculpture etc., the GRC cement that he makes compared with materials such as polyvinyl alcohol has bigger intensity and operability, especially use the special-shaped component of Mold Making, can significantly improve cement intensity, and aspect mending concrete, have an enormous advantage.

Technology contents:

As the polymer emulsion goods, its solids content, pH value, density, minimum film-forming temperature, second-order transition temperature, for the formulating of recipe of emulsion, manufacturing and compound all be important.The present invention is except reaching the coating standard in above requirement, in the employing of material, increase methymethacrylate content and cinnamic content, because methymethacrylate and vinylbenzene all are hard monomers, and Butyl acrylate is a soft monomer, vinyl cyanide or the dibutyl phthalate (DBP) of adding vast scale increase plasticity, and this is very important for being used for cement products, in order to reduce cost, strengthening cinnamic consumption also is main selection of the present invention, is the prescription of benzene emulsion below:

Butyl acrylate 20% vinylbenzene 20%

Methymethacrylate 2-8% vinyl cyanide 2-5%

MS-1 (emulsifying agent) 1-3% ammonium persulphate (initiator) 0.5%

Sodium bicarbonate 0.22% water 50%

Specific embodiments:

Producing benzene emulsion has kinds of processes to select, as batchwise polymerization technology, and continuous operation process, semi continuous operation technology etc., because polymerizable acrylic monomer exothermic heat of reaction amount is big, the comparison morning that gel effect occurs is so adopt half-continuous process.

At first with the MS-1 emulsifying agent that adds 16 kilograms in 340 kilograms the water, the even back of emulsifier for mixing adds 150 kilograms butyl acrylate, 150 kilograms vinylbenzene, 10 kilograms methymethacrylate, above material adds 10 kilograms vinyl cyanide after stirring, mix monomer carries out emulsification under the stirring of fierceness, then the emulsion that is mixed is put in the polymerization reaction kettle for 136 kilograms, add 1.6 kilograms initiator ammonium persulfate, be warming up to 70 degree, be incubated then to material and present blueness, a peak heat release can appear in this moment, temperature rises to more than 80 degree, when treating that temperature begins to descend, remaining mix emulsion fluid is dripped into, rate of addition is as the criterion so that the control temperature in the kettle is stable, remaining initiator and monomer can drip in reaction process continuously, be warmed up to 95 degree, be incubated 3 hours and vacuumize again and remove unreacted monomer, cooling at last, water cooling is adopted in cooling, adds ammoniacal liquor then and transfers pH value to 8-9, and above technological process all adopts polymer emulsion production general process scheme.

Claims

1. the prescription of a water-based benzene emulsion and making method is characterized in that, component and proportioning that the present invention is included are:

Butyl acrylate 20%

Vinylbenzene 20%

Methymethacrylate 2-8%

Vinyl cyanide 2-5%

MS-1 (emulsifying agent) 1-3%

Ammonium persulphate (initiator) 0.5%

Sodium bicarbonate 0.22%

Water 50%

2. according to the prescription and the making method of claim 1 described a kind of water-based benzene emulsion, it is characterized in that: in the water-based benzene emulsion, add vinyl cyanide and strengthen cinnamic content, the main application of this invention is than polyvinyl alcohol bigger intensity to be arranged aspect the cement products that is mixed, and is with the European member better effects if of die casting concrete by it.